I went with a Coralvue test, but this was before I read about people opinions on their tests. And my salinity is high, trying to slowly bring it down. This ICP wont be very accurate because I did a large water changes after this.
While the importance of trace elements is debated, my opinion is that 0 ppm Iodine and Strontium are probably inhibiting some of the coloration.
Do you think the aiptasia are irritating the corals? They could be stinging it where it is trying to lay down new skeleton and tissue.